202 COLUBRID. 
its distance from the frontal; suture between the internasals much 
shorter than that between the prefrontals ; frontal a little longer 
than broad, as long as its distance from the end of the snout, a little 
shorter than the parietals ; loreal longer than deep; one pre- and 
two postoculars ; temporals 2+2 or 2438; seven (rarely eight) 
upper labials, third and fourth entering the eye; four lower labials 
in contact with the anterior chin-shields, which are usually longer 
than the posterior. Scales in 21 (rarely 23) rows, Ventrals 
obtusely angulate laterally, 179-210; anal entire; subcaudals 
44-53. Scarlet, with pairs of black rings enclosing a yellow one; 
these rings may be interrupted on the belly, and the black nuchal 
band never extends across the throat ; the greater part of the upper 
surface of the head black. 
Total length 490 millim.; tail 80. 
Southern United States, North Mexico. 
a-f. 3 (V.191, 188; C.52, New Orleans. M. Sallé [C.]. . 
49), Q (V. 191, 202; oS 
C. 46, 50), & her. (V. 188, 
5 2 dO (Cb3,52). 
_g- Her. (V. 188; C. 48). Texas. 
h. Hgr. (V. 179; C. 49). N. America. Sir R. Murchison [P.}. 
12. Coronella zonata. 
Coluber (Zacholus) zonatus, Blainv. N. Ann. Mus. iv. 1835, p. 293. 
Ophibolus pyromelanus, Cope, Proc. Ac. Philad. 1866, p. 805. 
pyrrhomelas, Cope, Check-list N. Am. Rept. p. 37 (1875) ; 
Yarrow, Wheeler's Rep. Explor. Surv. W. 100th Mer. v. pl. xix. 
(1875) ; Cope, Proc. U.S. Nat. Mus. xiv. 1892, p. 610. 
Bellophis zonatus, Lockington, Proc. Cal. Acad. vii, 1877, p. 62. 
Coronella multifasciata, Bocourt, Miss. Sc. Mex., Rept. p. 616, pl. xl. 
fig. 2 (1886). 
Body compressed in its posterior half. Snout slightly prominent ; 
rostral about once and a half as broad as deep, the portion visible 
' from above hardly one third its distance from the frontal; suture 
between the internasals shorter than that between the prefrontals ; 
frontal a little longer than broad, as long as its distance from the 
end of the snout, shorter than the parietals; loreal longer than 
deep (rarely absent); one pre- and two postoculars ; temporals 
2+3,; seven upper labials, third and fourth entering the eye; four 
lower labials in contact with the anterior chin-shields, which are 
longer than the posterior. Scales in 21 (or 23) rows. Ventrals 
obtusely angulate laterally, 198-224; anal entire; subcaudals 
45-66. Scarlet, with pairs of blacks rings enclosing a yellow one ; 
these rings very numerous (47-55) and close together on the pos- 
terior half of the body, where the red interspaces are scarcely 
wider than the yellow rings or may disappear altogether; head 
black anteriorly, yellow posteriorly ; a black band across the nape, 
not extending to the throat. 
